
\usepackage{threeparttable}

\begin{table}
\caption{Treatment effects on support for non-citizen local voting rights in Study 1}
\begin{center}
\begin{threeparttable}
\begin{tabular}{l c c c c c c c c}
\hline
 & \multicolumn{1}{c}{vote US} & \multicolumn{1}{c}{vote own} & \multicolumn{1}{c}{gov dec} & \multicolumn{1}{c}{more info} & \multicolumn{1}{c}{vote US} & \multicolumn{1}{c}{vote own} & \multicolumn{1}{c}{gov dec} & \multicolumn{1}{c}{more info} \\
\cline{2-2} \cline{3-3} \cline{4-4} \cline{5-5} \cline{6-6} \cline{7-7} \cline{8-8} \cline{9-9}
 & (1) & (2) & (3) & (4) & (5) & (6) & (7) & (8) \\
\hline
control            & $2.608^{*}$         & $2.679^{*}$         & $2.663^{*}$         & $0.148^{*}$        & $1.913^{*}$         & $1.975^{*}$         & $2.147^{*}$         & $0.116^{*}$         \\
                   & $ [ 2.525;  2.692]$ & $ [ 2.595;  2.764]$ & $ [ 2.578;  2.747]$ & $ [ 0.128; 0.167]$ & $ [ 1.620;  2.207]$ & $ [ 1.682;  2.268]$ & $ [ 1.846;  2.447]$ & $ [ 0.039;  0.194]$ \\
co-partisan        & $0.045$             & $0.024$             & $-0.031$            & $-0.017$           & $0.049$             & $0.026$             & $-0.028$            & $-0.016$            \\
                   & $ [-0.073;  0.163]$ & $ [-0.096;  0.143]$ & $ [-0.151;  0.089]$ & $ [-0.043; 0.010]$ & $ [-0.043;  0.140]$ & $ [-0.066;  0.118]$ & $ [-0.124;  0.068]$ & $ [-0.042;  0.011]$ \\
counter-partisan   & $-0.270^{*}$        & $-0.305^{*}$        & $-0.303^{*}$        & $-0.004$           & $-0.286^{*}$        & $-0.321^{*}$        & $-0.317^{*}$        & $-0.003$            \\
                   & $ [-0.383; -0.156]$ & $ [-0.420; -0.189]$ & $ [-0.419; -0.186]$ & $ [-0.031; 0.023]$ & $ [-0.379; -0.194]$ & $ [-0.414; -0.228]$ & $ [-0.414; -0.220]$ & $ [-0.030;  0.023]$ \\
college            &                     &                     &                     &                    & $-0.010$            & $-0.012$            & $0.042$             & $-0.010$            \\
                   &                     &                     &                     &                    & $ [-0.098;  0.078]$ & $ [-0.101;  0.078]$ & $ [-0.051;  0.135]$ & $ [-0.035;  0.015]$ \\
male               &                     &                     &                     &                    & $-0.113^{*}$        & $-0.142^{*}$        & $-0.178^{*}$        & $-0.027^{*}$        \\
                   &                     &                     &                     &                    & $ [-0.189; -0.037]$ & $ [-0.219; -0.065]$ & $ [-0.258; -0.097]$ & $ [-0.049; -0.005]$ \\
white              &                     &                     &                     &                    & $0.015$             & $-0.010$            & $0.035$             & $-0.058^{*}$        \\
                   &                     &                     &                     &                    & $ [-0.115;  0.145]$ & $ [-0.142;  0.122]$ & $ [-0.097;  0.166]$ & $ [-0.096; -0.019]$ \\
latino             &                     &                     &                     &                    & $0.096$             & $0.108$             & $0.062$             & $0.009$             \\
                   &                     &                     &                     &                    & $ [-0.045;  0.237]$ & $ [-0.035;  0.251]$ & $ [-0.079;  0.203]$ & $ [-0.029;  0.048]$ \\
republican         &                     &                     &                     &                    & $-1.113^{*}$        & $-1.131^{*}$        & $-1.064^{*}$        & $-0.059^{*}$        \\
                   &                     &                     &                     &                    & $ [-1.231; -0.995]$ & $ [-1.249; -1.013]$ & $ [-1.185; -0.943]$ & $ [-0.091; -0.026]$ \\
independent        &                     &                     &                     &                    & $-0.574^{*}$        & $-0.573^{*}$        & $-0.578^{*}$        & $-0.028$            \\
                   &                     &                     &                     &                    & $ [-0.690; -0.459]$ & $ [-0.690; -0.457]$ & $ [-0.696; -0.459]$ & $ [-0.060;  0.004]$ \\
strong partisan    &                     &                     &                     &                    & $0.073$             & $0.083$             & $0.063$             & $-0.020$            \\
                   &                     &                     &                     &                    & $ [-0.016;  0.162]$ & $ [-0.007;  0.172]$ & $ [-0.028;  0.154]$ & $ [-0.044;  0.005]$ \\
employed           &                     &                     &                     &                    & $0.040$             & $0.014$             & $0.053$             & $0.000$             \\
                   &                     &                     &                     &                    & $ [-0.038;  0.117]$ & $ [-0.064;  0.092]$ & $ [-0.029;  0.134]$ & $ [-0.022;  0.022]$ \\
married/partner    &                     &                     &                     &                    & $-0.067$            & $-0.046$            & $-0.092^{*}$        & $0.003$             \\
                   &                     &                     &                     &                    & $ [-0.150;  0.015]$ & $ [-0.130;  0.037]$ & $ [-0.179; -0.005]$ & $ [-0.021;  0.026]$ \\
attitudes migrants &                     &                     &                     &                    & $0.431^{*}$         & $0.444^{*}$         & $0.400^{*}$         & $0.021^{*}$         \\
                   &                     &                     &                     &                    & $ [ 0.397;  0.465]$ & $ [ 0.410;  0.477]$ & $ [ 0.365;  0.435]$ & $ [ 0.011;  0.030]$ \\
native born        &                     &                     &                     &                    & $0.001$             & $0.040$             & $-0.034$            & $-0.002$            \\
                   &                     &                     &                     &                    & $ [-0.113;  0.115]$ & $ [-0.076;  0.155]$ & $ [-0.153;  0.085]$ & $ [-0.033;  0.029]$ \\
interest politics  &                     &                     &                     &                    & $-0.002$            & $-0.008$            & $-0.020$            & $0.020^{*}$         \\
                   &                     &                     &                     &                    & $ [-0.043;  0.039]$ & $ [-0.050;  0.033]$ & $ [-0.064;  0.023]$ & $ [ 0.009;  0.031]$ \\
\hline
cov                & no                  & no                  & no                  & no                 & yes                 & yes                 & yes                 & yes                 \\
Adj. R$^2$         & $0.008$             & $0.009$             & $0.007$             & $-0.000$           & $0.364$             & $0.372$             & $0.318$             & $0.023$             \\
Num. obs.          & $4135$              & $4135$              & $4135$              & $3920$             & $4135$              & $4135$              & $4135$              & $3920$              \\
\hline
\end{tabular}
\begin{tablenotes}[flushleft]
\scriptsize{\item Presents estimates of average treatment effects and heteroskedasticity-consistent 95\% CIs without and with covariate adjustment for Study 1. The sample includes Democratic, Republican and Independent registered voters who answered covariate and outcome questions. 
 $^*$ Null hypothesis value outside the confidence interval.}
\end{tablenotes}
\end{threeparttable}
\label{table:ols_study1}
\end{center}
\end{table}
